CN102518018B - Stacked structure of road pavement and construction method for stacked structure - Google Patents
Stacked structure of road pavement and construction method for stacked structure Download PDFInfo
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- CN102518018B CN102518018B CN201110442873.4A CN201110442873A CN102518018B CN 102518018 B CN102518018 B CN 102518018B CN 201110442873 A CN201110442873 A CN 201110442873A CN 102518018 B CN102518018 B CN 102518018B
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- aggregate chips
- course
- stacked structure
- road
- roll
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention relates to a stacked structure of a road pavement and a construction method for the stacked structure. The stacked structure comprises a surface course, a base course and a downmost cushion course which are stacked in turn and are bonded with one another, wherein a compacted stone chip sliding layer is paved between the surface course and the base course. The construction method comprises the following steps of: storing stone chips with the particle sizes of between 2.00 and 4.75mm and the water content of between 2 and 3 percent; paving the stored stone chips, and leveling by using a bulldozer first and then by using a grader, wherein a stone chip layer surface is made into a transverse drainage slope which inclines to two sides by 2 to 4 percent; rolling by using a vibratory road roller to avoid deflected rolling and dead angles and guarantee uniform rolling, wherein the road pavement is compacted according to the operating instruction strictly, and the thickness of the compacted stone chip sliding layer is between 8 and 16cm; and casting the surface course on the compacted stone chip sliding layer. The stacked structure of the road pavement has the advantages that: the stone chip sliding layer which is positioned between the surface course and the base course can buffer a dynamic load on the surface course, eliminate shearing force which is formed by the self weight of the base course and the cushion course, and prevent the condition that non-uniform subgrade settlement results in rigid pavement cracking.
Description
Technical field
The present invention relates to a kind of construction method of road, particularly a kind of pavement of road stepped construction and construction method thereof.
Background technology
At present, the road structure of traditional road is comprised of surface layer, basic unit and nethermost bed course, between every layer, all mutually bonds, and forms an integral body.When there is local differential settlement in roadbed, because the adhesion stress existing between each layer, bed course, basic unit can, because deadweight forms a lasting downward shearing to surface layer, add the dynamic load on upper layer or ftracture because settlement of subgrade is easy to cause rigid pavement.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of pavement of road stepped construction and construction method thereof, can cushion road surface dynamic load, prevent what rigid pavement from ftractureing.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of pavement of road stepped construction, comprises stack successively and the surface layer, basic unit and the nethermost bed course that mutually bond; Between described surface layer and basic unit, lay the aggregate chips glide lamella of compacting, can cushion surface layer top dynamic load, eliminate the shearing of the deadweight formation of basic unit and bed course, prevent from causing rigid pavement cracking because of settlement of subgrade.Described surface layer comprises concrete surface layer and asphalt surface course.
A construction method for pavement of road stepped construction, comprising:
In road construction, after bed course and base layer construction, aggregate chips glide lamella paves on basic unit;
[1] get the raw materials ready; Deposit granularity is the aggregate chips of 2.00-4.75 mm, and by watering or airing, the aggregate chips water content that makes to get the raw materials ready remains between 2%～3%; Aggregate chips material is identical with the building stones such as granite that basic unit and bed course adopt;
[2] pave, flatten; The aggregate chips that paves is got the raw materials ready, and first with bulldozer, carries out just putting down, then with land leveller, carries out end and put down, and guarantees that aggregate chips aspect is smooth, even; While paving, aggregate chips aspect makes to the transverse drainage slope of both sides inclination 2%～4%, in order to subgrade drainage;
[3] roll: adopt vibratory roller to roll, first press shoulder, in the middle of rear pressure roadbed, first slow rear fast, first static pressure, after vibration roll; During rolling operation, overlapping 30-50cm between lateral rows, more than the intersegmental overlapping 100cm in longitudinal region, guarantee no-bias, without dead angle, roll evenly, strictly by the requirement compacting of operational procedure; The thickness of the aggregate chips glide lamella after compacting is 8-16cm;
[4] above the aggregate chips glide lamella after compacting, pour into a mould surface layer.
The invention has the beneficial effects as follows: the aggregate chips glide lamella between surface layer and basic unit, can cushion surface layer top dynamic load, eliminate the shearing of the deadweight formation of basic unit and bed course, prevent from causing rigid pavement cracking because of settlement of subgrade.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is supercrust stack structure schematic diagram of the present invention.
The tradition that Fig. 2 is is angled road structure schematic diagram.
The specific embodiment
embodiment 1as shown in Figure 1: a kind of pavement of road stepped construction, comprises stack successively and the surface layer 1, basic unit 3 and the nethermost bed course 4 that mutually bond; Between described surface layer 1 and basic unit 3, lay the aggregate chips glide lamella 2 of compacting, can cushion surface layer 1 top dynamic load, eliminate the shearing of the deadweight formation of basic unit 3 and bed course 4, prevent from causing rigid pavement cracking because of settlement of subgrade.Described surface layer 1 comprises concrete surface layer and asphalt surface course.
embodiment 2as shown in Figure 1: a kind of construction method of pavement of road stepped construction, comprising:
In road construction, after bed course 4 and basic unit's 3 constructions, aggregate chips glide lamella 2 paves on basic unit 3;
[1] get the raw materials ready; Deposit granularity is the aggregate chips of 2.00-4.75 mm, and by watering or airing, the aggregate chips water content that makes to get the raw materials ready remains between 2%～3%; Aggregate chips material is identical with the building stones such as granite that basic unit and bed course adopt;
[2] pave, flatten; The aggregate chips that paves is got the raw materials ready, and first with bulldozer, carries out just putting down, then with land leveller, carries out end and put down, and guarantees that aggregate chips aspect is smooth, even; While paving, aggregate chips aspect makes to the transverse drainage slope of both sides inclination 3%, in order to subgrade drainage;
[3] roll: adopt vibratory roller to roll, first press shoulder, in the middle of rear pressure roadbed, first slow rear fast, first static pressure, after vibration roll; During rolling operation, overlapping 40cm between lateral rows, more than the intersegmental overlapping 100cm in longitudinal region, guarantee no-bias, without dead angle, roll evenly, strictly by the requirement compacting of operational procedure; The thickness of the aggregate chips glide lamella 2 after compacting is 10cm;
[4] above the aggregate chips glide lamella 2 after compacting, pour into a mould surface layer.
Claims (1)
1. a construction method for pavement of road stepped construction, comprising:
In road construction, after bed course (4) and basic unit (3) construction, aggregate chips glide lamella (2) paves on basic unit (3);
[1] get the raw materials ready; Deposit granularity is the aggregate chips of 2.00-4.75 mm, and by watering or airing, the aggregate chips water content that makes to get the raw materials ready remains between 2%～3%;
[2] pave, flatten; The aggregate chips that paves is got the raw materials ready, and first with bulldozer, carries out just putting down, then with land leveller, carries out end and put down, and guarantees that aggregate chips aspect is smooth, even; While paving, aggregate chips aspect makes to the transverse drainage slope of both sides inclination 2%～4%, in order to subgrade drainage;
[3] roll: adopt vibratory roller to roll, first press shoulder, in the middle of rear pressure roadbed, first slow rear fast, first static pressure, after vibration roll; During rolling operation, overlapping 30-50cm between lateral rows, more than the intersegmental overlapping 100cm in longitudinal region, guarantee no-bias, without dead angle, roll evenly, strictly by the requirement compacting of operational procedure; The thickness of the aggregate chips glide lamella (2) after compacting is 8-16cm;
[4] above the aggregate chips glide lamella (2) after compacting, pour into a mould surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110442873.4A CN102518018B (en) | 2011-12-27 | 2011-12-27 | Stacked structure of road pavement and construction method for stacked structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110442873.4A CN102518018B (en) | 2011-12-27 | 2011-12-27 | Stacked structure of road pavement and construction method for stacked structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518018A CN102518018A (en) | 2012-06-27 |
| CN102518018B true CN102518018B (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110442873.4A Expired - Fee Related CN102518018B (en) | 2011-12-27 | 2011-12-27 | Stacked structure of road pavement and construction method for stacked structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587224A (en) * | 2012-03-12 | 2012-07-18 | 中铁十九局集团有限公司 | Basic structure of ground structures and application method of the basic structure for building railway roadbed |
| CN107798175B (en) * | 2017-10-10 | 2020-10-13 | 武汉理工大学 | Method for evaluating bearing capacity reserve of asphalt pavement in initial design stage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687166Y (en) * | 2004-03-26 | 2005-03-23 | 重庆交通学院 | Flexible base anticracking asphalt road surface structure |
| CN2778868Y (en) * | 2005-04-07 | 2006-05-10 | 中国矿业大学 | Subside area distortion-resistant road surface structure. |
| CN101016716A (en) * | 2007-02-14 | 2007-08-15 | 易志坚 | Influent polymer cement concrete pavement structure on asphalt surface course and contracture method |
| CN202369884U (en) * | 2011-12-27 | 2012-08-08 | 江西中联建设集团有限公司 | Laminating structure of road pavement |
-
2011
- 2011-12-27 CN CN201110442873.4A patent/CN102518018B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687166Y (en) * | 2004-03-26 | 2005-03-23 | 重庆交通学院 | Flexible base anticracking asphalt road surface structure |
| CN2778868Y (en) * | 2005-04-07 | 2006-05-10 | 中国矿业大学 | Subside area distortion-resistant road surface structure. |
| CN101016716A (en) * | 2007-02-14 | 2007-08-15 | 易志坚 | Influent polymer cement concrete pavement structure on asphalt surface course and contracture method |
| CN202369884U (en) * | 2011-12-27 | 2012-08-08 | 江西中联建设集团有限公司 | Laminating structure of road pavement |
Non-Patent Citations (1)
| Title |
|---|
| 王晓艳.沥青路面反射裂缝防治措施研究.《农家之友（理论版）》.2009,第95-96，99页. * |
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| CN102518018A (en) | 2012-06-27 |
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